Packing ledge



July 10, 1934. F. M. BUEHRING 1,966,160 PACKING LEDGE I Filed Oct. 1, 1952 Patented July 10, 1934 U N li' PACKING LEDGE Frederick Marina Buehring, Edsberg, Tureberg, Sweden Application October 1,

1932, Serial No. 635,820

In Sweden April 22, 1929 1 Claim.

The present invention refers to draught excluding devices for hermetically closing the joints between two parts which are movable relatively to each other in a sliding or pivoting manner, for instance the joints between a window and the window frame or a door and the door posts or door case, and between similar objects. The invention concerns a packing strip which in a manner known per se consists of a ribbon or tape which is wound in its longitudinal direction about a cord or a wick of suitable material, and of a covering strip which covers one side of the packing strip.

According to the present invention electric insulating tape, so called Bergmann tape, that is, a tape treated with a material of an adhesive character, is used as material for the said ribbon or tape and for the covering strip bakelite or similar condensation product is used.

The use of an electric insulating tape involves many technical advantages. On account of the natural adhesiveness of the tape the wick or cord placed in the interior thereof is retained in a most satisfactory manner, without the necessity to sew together the two parts of the tape, which hitherto has been the case when utilizing other tape material. The said parts are placed together in the present case and adhere together over the whole of the width, that is to say not only at the joint proper as in the case of other material. The adhesiveness of the tape brings about further advantages when applying the covering strip on the tape, because binding material such as rubber solution used for this purpose unites with the adhesive material of the tape, whereby the tape and the covering strip are firmly united with each other. Also when mounting the finished packing strip the adhesiveness of the tape offers great advantages.

The utilization of bakelite or similar condensation product for the covering strip also brings about great advantages. A covering strip for a packing strip ought to be of a material which is fireproof, resists atmospheric influences, such as cold, heat, moisture, and so on, may easily be worked and is flexible, for instance when it is used for hermetically closing the joints of an arch shaped window or the like. All these conditions are fulfilled by bakelite and similar products of condensation.

The invention is illustrated on the accompanying drawing which by way of an example shows one form of embodiment of the invention applied to a. window.

In the drawing, 1 designates the window sash with its rabbet 2, on which rests in usual manner the window pane 3 which is fixed by means of a glazing strip 4. 5 designates a hinge, by means of which the window sash is united with the window frame 6.

The packing strip according to the present invention consists in the form of embodiment as shown of a cord or a wick '7 for instance of cotton threads, and of a tape 8, 9 folded or wound longitudinally of itself around the cord or the wick and consisting of a usual electric insulating tape. The natural adhesiveness of this tape is utilized for uniting together the two parts 8, 9 of the tape, so that the joint between the same will lie in a plane forming a tangent plane to one edge of the wick 7. These parts 8 and 9 form a substantial attaching flange. One half 9 of the tape is covered by a strip 10 of bakelite or similar material which is fixed to the tape by means of some suitable binding material, such as rubber solution. The width of this strip is so dimen sioned that the strip 10 covers the plane surface of the tape but not its curved edge which contains the wick 7, the covering strip 10 serving in this manner as a support for that edge of the packing strip which effects the closing of the joint.

In applying the invention for hermetically closing a joint of the kind above referred to, for instance the joint between the window sash 1 and the window frame 6, the packing strip consisting of the wick '7, the insulating tape 8, 9 and the covering strip 10 is attached in such a manner that, when the window is open, that edge of the strip, which contains the cord or the wick 7, projects a little distance beyond that rabbet of the window frame, on which the window sash rests when the window is closed. The packing strip is attached to the window by means of some suitable binding material, such as rubber solution, avoiding fastening means such as nails or the like, so that all damage to the window frame is avoided. The packing strip may be removed and replaced by a new one at any time, without the material to which this has been attached being damaged in the least.

What I claim is:-

A draught excluding device for closing a joint between two parts movable relative to each other in a sliding and pivoting manner for instance windows, doors, and the like comprising a cord of resilient material, an electric insulating tape treated with an adhesive, said tape being folded longitudinally upon itself to enclose the cord and to also provide a flexible attaching flange, and a covering strip formed substantially of bakelite material secured to and covering one side of the attaching fiange.

FREDERICK MARINA BUEHRING. 

